Candy-making apparatus.



W. E. SGHRAFFT, F. W. BLAKE & G. A. LORENTZEN.

CANDY MAKING APPARATUS.

APPLICATION FILED MAR. 24, 1913.

1,123,934, Patented Jan. 5, 191 5.

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5 1 GwlaueALorezzlzen. 3% Q m S BY I ATTORNEY.

W. E. SGHRAFFT, F. W. BLAKE & G. A. LORENTZEN. CANDY MAKING APPARATUS.APPLICATION FILED MAR.24, 1913.

1,123,934. Patented Jan.5, 1915.

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ATTORNEY.

W. E. SGHRAFFT, F. W. BLAKE & G. A. LORENTZEN.

CANDY MAKING APPARATUS.

APPLICATION FILED MAR. 24, 1913.

Patented Jan. 5, 1915.

5 SHEETS-SHEET 3.

INVENTORJ.

William L. Selma/3. Hvderzich MBlzzhe. B y Gzwtauz A.Lare1zzlen.

3' 5; 3 Q/IZE ATTORNEY.

W. E. SGHRAFFT, F. W. BLAKE & G. A. LORENTZEN.

CANDY MAKING APPARATUS.

APPLICATION FILED MAR. 24, 1913,

Patented Jan. 5, 1915.

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CANDY MAKING APPARATUS.

Arruu'rml rum 3.24, 191a,

1,123,934. Patented Jan. 5, 1915.

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ATTORNE f UNITED STATES PATENT OFFICE.

WILLIAM E. SCHBAFFT, OF SOMEEVILLE, FREDERICK W. BLAKE, OF MEDFOED, ANDGUSTAVE A. LORENTZEN, OF EAST BOSTON, MASSACHUSETTS, ASSIGNORS TO W. F.SCHRAFFT & SONS CORPORATION, OF BOSTON, MASSACHUSETTS, A CORPORATION OFMASSACHUSETTS.

CAN DY-MAKING APPARATUS.

Specification of Letters Patent.

To all whom it may concern:

Be it known that we, WILLIAM E. SCHRAFFT, FREDERICK W. BLAKE, and Gus-TAVE A. LORENTZEN, citizens of the United States of America, residing atSomerville, county of Middlesex, at Medford, county of Middlesex, and atEast Boston, county of Sufiolk, respectively, all in the State ofMassachusetts, have invented new and useful Improvements in Candy-MakingApparatus, of which the following is a spclfication.

This invention relates to an apparatus for use in candy making. It isespecially adapted for use with a continuous candy-making machine, inwhich case it is desired to pack the candy output continuously andconveniently.

The object of the invention is to provide an apparatus combined with acontinuous candy-making machine which will cooperate with thecandy-making machine in cooling the candies and providing easy andefficient means for operators to pack the candy in a continuous manner.

Another object of the invention is to improve the details ofconstruction of the cooling and packing apparatus in order to make theapparatus most convenient for the uses desired.

With these objects in view, the invention can best be understood from aconsideration of the combination of the parts of the ap aratus combinedin the manner hereina ter described.

One preferred embodiment of the invention is shown for purpose ofillustration, and this embodiment will be specifically described for abetter understanding of the invention.

Referring to the draWings, Figure 1 is a side elevation of the frontpart of .the machine. Fig. 2 is a side elevation of the rear part of themachine. This figure is made separate from Fig. 1 for the reason thatthe first sheet is not large enough to accommodate a drawing to thedesired scale. Fig. 3 is an end elevation of the apparatus from thefront end of the machine. Fig. 4 is a plan view of a desired arrangementfor the different sets of apparatus as arranged in' the factory. Fig. 5is a plan view of one of a series of trays adapted for use with theapparatus. Fig. 6 is a detail view showing Patented Jan. 5, 1915.

the means for driving one of the shafts at the rear of the apparatus.Fig. 7 is a detail new of the ratchet-operating mechanism for drivingone of the shafts. Fig. 8 is a detail new of the holding means appliedto the ratchet-operating pawl. Fig. 9 is a view of the apparatus withthe vertical and up horizontal conveyers inclosed in a cham r at theright of the wall a (Fig. 1). A suitable opening through this wall aallows the delivery belt a of the candy-coating machine at the left ofthe wall a to pass. A fan 6 operates to direct a blast of air directlyacross the opening in the wall a. The room at the left of Wall a is keptat a considerably lower temperature than the room at the right of thewall a, and the fan I; is used to prevent the free circulation of airthrough the opening, which opening is necessary to. allow thedelivery-belt to pass from one room to another. The front end of themain part of the apparatus is arranged approximately in line with thebelt 9 traveling from the candv-coatin machine. As shown in Figs. 1 and4, brac ets e support a table 32 at one side of the belt 1 on whichtable the trays,

as 31, shown in Fig. 5, are adapted to rest. The coated candies travelalong the belt g on what are called plaques, which are sheets of paperor other material adapted to hold the candy. An operator stands at theside of the table 32 and as each sheet of paper or I plaque on which thecohted candies rest on the belt 9 arrives in front' of the table 32, theoperator slides the sheet from the belt q to the tray 31 resting on thetable. The tray is then by the operator at the table on thesupports, asangle-irons 9', shown in Figs. '1 and 3. These supports or brackets arecarried by chains h in a manner to be described. When the operator hasplaced a tray 31 filled with candy on the supports 9, empty tray'31,which is resting on another set of the supports g, is slid away fromsaid su ports and placed on the table at the side 0 the conveying belt qin order for the next sheet of paper or plaque containing the chocolatesto be placed thereon. The empty plaque or sheet in this operation isremoved from the tray and again used in the candy-coating machine. Thesupports 9 travel upwardly in an intermittent manner, during whichoperation the operator, standing at the table as described, takes anempty tray from each pair of supports 9 and replaces it with a full trayin the manner described. This operation is kept up in an intermittentmanner as long as the apparatus is operating.

When the supports 9 lift the trays to the upper end of the apparatus, ina manner to be described, chains n, which pass over the sprocket-wheelson the idle-shaft i, operate trac through projections 0 carried by saidchains to push the tray from the supports 9 on the pan of tracks m. Thechains n o erate through a determined distance whi e the supports 9 andtheir carrying chains are at rest. Thus, when the supports 9 present atray in line with the tracks m and there stop, the chain a operates toslide the tray onto the tracks m. The trays, one after another, beingpresented by the supports 9', are thus slid along the track m from theupper, front endof the machine to the upper, rear end in what may becalled their upper travel,which 1s through a considerable distance inorder to allow time for the candies on the trays whichare still warm tocool.

At the rear-end of the machine, a'series ox suppxorts t are arrangedwith relation to the m in a similar manner to the supports 9 alreadydescribed. The operation 0 supports it, however, carries the trays whichare pushed thereon from the track 'm; downwardlv instead of upwardly.When the trays have been carried into line with their lower horizontaltravel, conveying chains, similar to chains n, passing over sprockets onthe shafts q and 16 at the front and rear end of the apparatus, by meansof projections r thereon, carry the trays one after another away fromthe sup orts t.

Arranged along the line of travel from the lower rear end to the frontend of the machine are tables a (see Fig. 3) alongside of which candypackers work. As each tray passes the tables 8 on its lower travel, thepackers remove the candies from the tray and pack them in boxes suitablyplaced on the tables a. The candies at this point have had sufiicienttime to cool for packing. The apparatus operates intermittently so thatthe packers have a definite allowed time in which to remove the candyfrom the filled trays; thus they must necessarily operate at a requiredspeed to keep the apparatus in operation successfully. After the trayshave been emptied by the packers, they continue shaft jp an rear end ofthe machine run over sprocketsthese along their lower travel and are aain automatically slid on the supports 9 W ich carry erations has nowbeen described, and the manner in which the several parts operate willbe described.

r The upper travel of the trays along the track m 18 controlled by twochains 11. passing over sprocket-wheels on the shaft 11 and on the shafty, the latter being the drivingshaft for these chains. The lower travelof the trays is controlled by similarly-arranged chains passing oversprocket-wheels on the shaft 16 and on the shaft q, the shaft 16 beingthe drivingshaft for this set of chains. The upward and downward travelof the trays can best be understood by reference to Figs. 1, 2, and 3.The shaft 7' extends the whole length of the machine, as indicated inFigs. 1 and 2, and shaft Z is. a driven-shaft which is operated throughthe beveled gearing is from the shaft 7' and extends only through thevertical cross-pieces of the frame 7, in

order to support the sprockets on which the chains hrun. As seen in Fig.3, chains 71., carrying supports g, pass over sprockets on d lp. Thechains u at the on the shafts j and p, and the other pair run onsprockets, not shown in the figure, which correspond to shafts l and 2,shown in Fig. 3. These shafts (not shown) are operated from the shaftthrough the beveled gearin o in an obvious manner.

he shaft j is operated from the driving pulley 60 through a gear-train10, rod 7, and lever connection 6 and 5, the latter operat ing-a ratchetniecham'sm to be-described. As seen in Fig. 2, the lever 6 is pivoted atits rear end to the frame f and at an intermediate point to rod 7. Theother end of the rod 7 is pivoted ofl center to gear 10. At the outerend of the lever 6 is a lever 5 which operates the ratchet mechanism,noted generally by 3, to give the shaft 7' an intermlttent rotation in amanner best understood from an inspection of Fig. 7.

When the lever 5 is raised by means of the rod 7 and the connectionsdescribed, it will be seen from Fig. 7 that the bell-crank lever 26,loosely pivoted on the shaft j, will move the pawl 21 to operate theratchet 71, which is fast to the shaft j, and thus move thisratchet-wheel 'a distance of about two teeth, as indicated by the dottedline position of the pawl 21 as compared to the full line positionthereof in Fig. 7. In order to make the operation of ratchet 71positive, a locking pawl 22 is operated in connection with pawl 21 asfollows: The lever 4 (see Fig. 2) is operated by means of a cam 9mounted on the same center with the gear 10. This cam operates through alever 8 pivoted to the frame to raise and lower the .lever 4. The lever4 operates a bell-crank lever 25, seen in'Fig. 7, which rocks loosely onthe shaft The cam operating the rod 4 is so designed with relation tothe operation of the rod 7 that the bell-crank 25 will operate withrelation to the bell-crank 26, as will be described. Thus, referring toFig. 7, assuming that the operating pawl 21 is in the dotted lineposition shown, the bell-crank 25, which has'a curved track 19 adaptedto operate on the rollers 24 and 20, has just started to movecounter-clockwise, whereupon the track allows the locking pawl 22, bymeans of its spring, to enter between the teeth of the ratchet 71 andlock the same in position. ment counter-clockwise causes the track 19 onthe bell-crank lever 25 -to engage the roller 20 and lift theoperating-pawl 21 out of engagement with the ratchet-wheel. Thebell-crank lever 26 then operates to turn counter-clockwise until theroller 20 strikes spring-pressed stop 27, mounted ,on the bracket 28 onthe frame f which causes the operating pawl 21 to again engage betweenthe ratchet-wheel. A small spring-pressed plunger 51 mounted in the endof the bellcrank lever 26 coiiperates with two small recesses in theyhub of the pawl 21 so that the pawl is held in one or the other of itsengaged or disengaged positions. The track 19 moves the] pawl 21 intoone position and the yielding spring-stop 27 moves it into its otherposition, all as clearly shown in Figs. 7 and 8. While the bell-cranklever 26 is turning to the left, bell-crank lever 19 is turning to theright, and just before the bell-crank lever 26 starts to turn to theright in its next operation, the track 19 engages the roller 24 andlifts the lockingpawl 22 out of engagement with the ratchetwheel,whereupon the cycle of operations is repeated. These operations cause anintermittent rotation of the shaft j which is so geared with thesprocket-wheels carrying the chains, ,as aforesaid, to cause all thetrays to. be moved by the chains one step forward. I

The means for operating the chains h and u on each end of the machinewill now be described. Referring toFig. 2, the lever 1 is pivoted at itslower end to the frame f, and, on its upper end, has attached thereto aflexible connection 13 which connects with a chain 71 passing over asprocket 17, shown in detail in Fig. 6, which is loosely mounted on theshaft 14. After the chain 71 passes around this sprocket 17, it isdirected in by the idle-sprocket 72, shown in Fig. 2, and attached to aweight 15. At an intermediatepoint of the lever 1, a lever 2 is pivoted,which is operated by a crank The continued move 10 connected at itsouter end to the lever 2 and at its inner end to the shaft of the gear10. As this gear 10 moves, the lever 1 passes from an extreme left-handposition to an extreme right-hand position, during which time it willcause the chain 71 to turn the shaft 14 in a manner indicated in Fig. 6.If the sprocket 17 is rotated contrary to the arrow in Fig. 6, it willbe seen that the pawl mounted at 18 on the face of the sprocket-wheel 17will ride over the teeth on a suitable disk arranged in connection withthe sprocket 17 and pinned to shaft 14, as

' shown in Fig. 6, and the shaft 14 will not be driven.

A rotation of sprocket-wheel 17 in the direction of the arrow will causea rotation of the shaft in the same direction, due to the constructiondescribed. Thus, when the lever 1 moves to the extreme right-handposition, the weight 15 is lifted and the chain 71 causes the shaft 14to be turned the desired amount. When the lever 1 returns to itsleft-hand position, the weight merely causes the ratchet to turn withoutany turning of the shaft 14. The turning of the latter is, therefore,intermittent. To the shaft 14 by means of a chain connection the shaft yand the shaft 16. Thus, the shaft 14 gives an intermittent rotation tothe shafts y and 16 which operate the chains of the conveying mechanismin a manner as before described. Theoperation of the crank 10 isarranged to throw the lever 1 to the right at a time when the operatingpawl 21 of the ratchet-wheel 71 is returing after opera-ting the shaftj. Thus, the shaft j is turned when the shaft 14 is stationary, and theshaft 14 is turned when the shaft j is stationary, all of which givesthe horizontal.

movements of the conveyer, which are, in their upper and lower travel, astepby-step movement, alternating with the upward and downward movementof the chains u and k.

In Fig. 9 the apparatus is illustratedin an efficient form, in which thevertical conveyers as well as the top horizontal conveyer are inclosedin a casing A, C, and B, respectively. Through a pipe D at one end ofthe machine cold air is forced by a suitable fan in the direction of thearrow. This cold air travels in a direction through the casing A, B andC opposite to the movement of the goods therethrough, thus cooling. thegoods in an efficient manner. The air leaves the casing C through thepipe E and preferably room at the left of wall a at as low a temperatureas would otherwise be the case, thus resulting in a saving in theoperation of the refrigerating plant.

When the machine is operating, the product of the coating or othermachine in the room at the right of wall a is delivered to the machinein the room at the left of the wall a, through which machine the producttravels a sufiicient distance in at cooling temperature to be cooled andready forpacking when it reaches the ositions occupied by the packers. Aban of the coating machines A is preferably arranged with a bank of thepacking machine B in a manner indicated in Fig. 4.] When the packersfill their boxes the latter are placed on a suitable cross-conveyer Cwhich runs crosswise between the upper and lower travel of the conveyingmeans in the packing machines. The filled boxes are by this meansdelivered to a point D, where other ackers may assemble the propernumber of boxes and pack them in a shipping case. The arrangement asoutlined has been found a most efficient one, saving a large amount oflabor and floor space heretofore necessary for the work.

While. applicants have described the pre ferred embodiment of theirinvention, the same is not limited to the one form shown, but may beadapted in various forms without departing from the scope of theinvention.

What we claim, is,-

1. An apparatus of the class described, comprising, in combination, aseries of removable trays, means arranged tomove said trays in'anuppenand lower horizontal path, the movement of the trays in the twopaths being in opposite directions, other means arranged to transfer thetrays from the lower to the upper path and from the upper to the lowerpath, a driving device for the firstmentioned means, and adriv'ingdevice for the second-mentioned means, said devices being constructedand arranged to operate intermittently and each to operate in alternatetime relation with the other, whereby the movement of the trays in theirupper and lower travel takes place during the interval between movementsof the trays in their downward and upward travel, all for the purposedescribed.

2. An apparatus of the class described,

- comprising, in combination, a frame having upper and lower supportsarranged one over .the other fora series of removable trays, a series oftrays constructed to rest in said supports, conveying means constructedto move said trays from one end'of said supports to the other, twovertical conveying arranged to drive the vertical conveyers in anintermittent manner and drive said con veying means in an intermittentmanner with an alternatin time relation to the driven movement 0 thevertical conveyers,

-all for the purpose described.

series of trays arranged to be carried by said conveyers through a cycleof movement, said conveyers being constructed to pass the trays from oneto another in an automatic manner, two sets of driving devices, one foreach set of conveyers, arranged to drive its set of conveyers while theother set is stationary, whereby the trays are transferred from one setof conveyers while in motion to the other set of conveyers while atrest, all for the purpose described. I p 4. An apparatus of the classdescribed, comprising a frame, two horizontal conveyers o erably mountedtherein, one arranged a ove the other, driving means operable to driveboth conveyers in unison, two vertical conveyers connecting the twohorizontal conveyers at the opposite ends thereof, driving mean-s forsaid vertical conveyers operable to drive them in opposite directions,both of said conveyer driving means being constructed and arranged tooperate intermittently, the operation of one alternating with theoperation of the other, all

for the purpose described. p

5. An apparatus of the class described,

comprising in combination, a frame having 1 ranged along the path of thelower hori-' zontal conveyer, a-series of removable trays adapted to'bemoved one after the other by said conveyers, one of said conveyers beingarranged to. allow the convenient removal and insertion of each of saidtrays, driving devices arranged to move said conveyers in a direction'to carry said trays from the point at which they are inserted first'tothe upper horizontal conveyer along the length of that conveyer to theend vertical conveyer and then to'the lower horizontal conveyer,whereby-the trays reach the packing table after passing through thegreater part of travelthrough the frame from the point where they areinserted, thus allowing time for any warm articles placed on the traysto be cooled before reaching the packing table.

-6. An apparatus of the class described, comprising a candy-coatingmachine, a frame having therein a series of conveyers, a series of traysadapted to receive the product from said machine and be inserted in theconveyers in the frame, a packing table arranged adjapent one of theconveyers, driving devlces to move the conveyers when the trays havebeen inserted therein in a direction to carry the trays through thegreater part of the conveyers path before they reach the packing table,all for the purpose described.

7. Apparatus of the class described, comprising, in combination, a riesof candycoating machines, a series of packing frames, one arrangedadjacent to each of said machines, each frame having a series ofconveyers therein and a packing table adjacent thereto, a series oftrays for each packing frame adapted to receive the product from theadjacent machine and carrying it to the packing table, driving means forsaid conveyers in. each frame whereby the trays are moved to the packingtable of the frame through a distance in their frame suflicient to allowtime for the product on the trays to cool before reaching the packingtable, and a conveyer connecting the several packing tables on which thepacked product may be placed from each packing frame, said conveyerleading to a central point where the product of all machines may beassembled, all for the purpose described.

8. An apparatus of the class described, comprising conveying meansconstructed and arranged to operate in a complete cycle,

driving devices to operate said conveying means, a casing arrangedaround the greater part of the travel of the conveying means constructedand arranged to serve as a conduit for a temperature-controlling medium,whereby the temperature of goods carried in said conveying means may bechanged as they pass to the desired point, all for the purposedescribed.

9. An apparatus of the class described, comprising in: combination, aframe, two horizontal conveyers operably mounted therein, arranged oneabove the other, driving means operable to drive both conveyerssimultaneously and in opposite directions with a step by step movement,two vertical conveyers, operably mounted in said frame, driving meansoperable to drive said vertical conveyers simultaneously and in oppositedirections with a step by step movement, said horizontal conveyersarranged to move during the interval of rest of said vertical conveyers.

WILLIAM E. SCHRAFFT.

Witnesses:

EDGAR H. SAVAGE, L. MAE FORD.

FREDERICK W, BLAKE. GUSTAVE A. LORENTZEN. Witnesses:

EDGAR H. SAVAGE, SAMUEL SIDLOFSKY.

